Apparatus for housing printed circuit board

Abstract

An object of the present invention, which is a printed circuit board housing apparatus, is to allow the state of the printed circuit boards inside a rack (fully loaded or in mid-process, or the like) to be determined at a glance from outside the rack, so as to ensure that printed circuit boards are controlled in each rack. To achieve this object, the printed circuit board housing apparatus pertaining to the present invention comprises a display mark on the exterior component of the rack side plates for displaying the state of the printed circuit boards inside the rack, and a shutter for switching the display of the display mark, as well as a drive component for sliding the shutter.

What is claimed is: 
     
       1. A printed circuit board housing apparatus, equipped with a rack having a pair of side plates with concave components to support printed circuit boards, a lifter component that fixes said rack to lift it at a set pitch so as to house printed circuit boards in the rack, and ascending and descending conveyor components for conveying said rack in a set direction, wherein said printed circuit board housing apparatus comprises: a display mark on the exterior component of said rack side plates for displaying the state of the printed circuit boards inside the rack, and a shutter for switching the display of said display mark; and   a drive component for sliding said shutter to the top of the bottom conveyor.   
     
     
       2. A printed circuit board housing apparatus as defined in claim 1, wherein the drive component further comprises a pair each of cylinders and levers, said shutter being operated via the levers by the operation of the cylinders. 
     
     
       3. A printed circuit board housing apparatus as defined in claim 1, further comprising a spring for positioning the shutter, and a guide to prevent the shutter from jumping out. 
     
     
       4. A printed circuit board housing apparatus as defined in claim 1, further comprising a fan at the lifter component for cooling the interior of the lifter component and for cooling the printed circuit boards.